The issue with all of these open social protocol is that they fail to grasp that they are built for entertainment, and hence the modulated emotional reactions are a feature not a bug.

Existing social platforms are built for profit, which modulates emotion for engagement (something kind of like entertainment, but I wouldn't say I'm entertained exactly by the rage bait I'm often fed by algorithms). Users of an open protocol might select for the same experience, or they might not, I think that's yet to be seen. This also assumes that this fantasy open protocol could also escape the pressures of maximizing profit.